The European Southern Observatory issued a challenge last October to amateur astronomers everywhere: "Find the best photos that ESO's professional image processors overlooked". The results are now in, and they are stunning.

'Sur les rivages' project (design Aïssa Logerot and Amandine Chhor) proposes to revaluate the weaving craft of water hyacinth in Cambodia. This aquatic plant is harmful because it causes many environmental, sanitary and economic problems.